summaryrefslogtreecommitdiff
path: root/fs/nfs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/callback.c1
-rw-r--r--fs/nfs/callback_proc.c5
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c37
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayoutdev.c19
-rw-r--r--fs/nfs/nfs4proc.c12
-rw-r--r--fs/nfs/nfs4session.c33
-rw-r--r--fs/nfs/nfs4session.h1
-rw-r--r--fs/nfs/pnfs.c4
8 files changed, 78 insertions, 34 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index a7f2e6e33..52a28311e 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -275,6 +275,7 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv,
err_socks:
svc_rpcb_cleanup(serv, net);
err_bind:
+ nn->cb_users[minorversion]--;
dprintk("NFS: Couldn't create callback socket: err = %d; "
"net = %p\n", ret, net);
return ret;
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index aaa2e8d3d..8cfa21f40 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -430,11 +430,8 @@ static bool referring_call_exists(struct nfs_client *clp,
((u32 *)&rclist->rcl_sessionid.data)[3],
ref->rc_sequenceid, ref->rc_slotid);
- spin_lock(&tbl->slot_tbl_lock);
- status = (test_bit(ref->rc_slotid, tbl->used_slots) &&
- tbl->slots[ref->rc_slotid].seq_nr ==
+ status = nfs4_slot_seqid_in_use(tbl, ref->rc_slotid,
ref->rc_sequenceid);
- spin_unlock(&tbl->slot_tbl_lock);
if (status)
goto out;
}
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 0e8018bc9..6da14aedd 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -806,11 +806,14 @@ ff_layout_choose_best_ds_for_read(struct pnfs_layout_segment *lseg,
{
struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg);
struct nfs4_pnfs_ds *ds;
+ bool fail_return = false;
int idx;
/* mirrors are sorted by efficiency */
for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) {
- ds = nfs4_ff_layout_prepare_ds(lseg, idx, false);
+ if (idx+1 == fls->mirror_array_cnt)
+ fail_return = true;
+ ds = nfs4_ff_layout_prepare_ds(lseg, idx, fail_return);
if (ds) {
*best_idx = idx;
return ds;
@@ -859,6 +862,7 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio,
struct nfs4_pnfs_ds *ds;
int ds_idx;
+retry:
/* Use full layout for now */
if (!pgio->pg_lseg)
ff_layout_pg_get_read(pgio, req, false);
@@ -871,10 +875,13 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio,
ds = ff_layout_choose_best_ds_for_read(pgio->pg_lseg, 0, &ds_idx);
if (!ds) {
- if (ff_layout_no_fallback_to_mds(pgio->pg_lseg))
- goto out_pnfs;
- else
+ if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg))
goto out_mds;
+ pnfs_put_lseg(pgio->pg_lseg);
+ pgio->pg_lseg = NULL;
+ /* Sleep for 1 second before retrying */
+ ssleep(1);
+ goto retry;
}
mirror = FF_LAYOUT_COMP(pgio->pg_lseg, ds_idx);
@@ -890,12 +897,6 @@ out_mds:
pnfs_put_lseg(pgio->pg_lseg);
pgio->pg_lseg = NULL;
nfs_pageio_reset_read_mds(pgio);
- return;
-
-out_pnfs:
- pnfs_set_lo_fail(pgio->pg_lseg);
- pnfs_put_lseg(pgio->pg_lseg);
- pgio->pg_lseg = NULL;
}
static void
@@ -909,6 +910,7 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio,
int i;
int status;
+retry:
if (!pgio->pg_lseg) {
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
@@ -940,10 +942,13 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio,
for (i = 0; i < pgio->pg_mirror_count; i++) {
ds = nfs4_ff_layout_prepare_ds(pgio->pg_lseg, i, true);
if (!ds) {
- if (ff_layout_no_fallback_to_mds(pgio->pg_lseg))
- goto out_pnfs;
- else
+ if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg))
goto out_mds;
+ pnfs_put_lseg(pgio->pg_lseg);
+ pgio->pg_lseg = NULL;
+ /* Sleep for 1 second before retrying */
+ ssleep(1);
+ goto retry;
}
pgm = &pgio->pg_mirrors[i];
mirror = FF_LAYOUT_COMP(pgio->pg_lseg, i);
@@ -956,12 +961,6 @@ out_mds:
pnfs_put_lseg(pgio->pg_lseg);
pgio->pg_lseg = NULL;
nfs_pageio_reset_write_mds(pgio);
- return;
-
-out_pnfs:
- pnfs_set_lo_fail(pgio->pg_lseg);
- pnfs_put_lseg(pgio->pg_lseg);
- pgio->pg_lseg = NULL;
}
static unsigned int
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 0aa36be71..ae5e15fd1 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -379,7 +379,7 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
devid = &mirror->mirror_ds->id_node;
if (ff_layout_test_devid_unavailable(devid))
- goto out;
+ goto out_fail;
ds = mirror->mirror_ds->ds;
/* matching smp_wmb() in _nfs4_pnfs_v3/4_ds_connect */
@@ -405,15 +405,16 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
mirror->mirror_ds->ds_versions[0].rsize = max_payload;
if (mirror->mirror_ds->ds_versions[0].wsize > max_payload)
mirror->mirror_ds->ds_versions[0].wsize = max_payload;
- } else {
- ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),
- mirror, lseg->pls_range.offset,
- lseg->pls_range.length, NFS4ERR_NXIO,
- OP_ILLEGAL, GFP_NOIO);
- if (fail_return || !ff_layout_has_available_ds(lseg))
- pnfs_error_mark_layout_for_return(ino, lseg);
- ds = NULL;
+ goto out;
}
+ ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),
+ mirror, lseg->pls_range.offset,
+ lseg->pls_range.length, NFS4ERR_NXIO,
+ OP_ILLEGAL, GFP_NOIO);
+out_fail:
+ if (fail_return || !ff_layout_has_available_ds(lseg))
+ pnfs_error_mark_layout_for_return(ino, lseg);
+ ds = NULL;
out:
return ds;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 7796beacd..e2320c643 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7509,12 +7509,20 @@ static int _nfs4_proc_create_session(struct nfs_client *clp,
status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
trace_nfs4_create_session(clp, status);
+ switch (status) {
+ case -NFS4ERR_STALE_CLIENTID:
+ case -NFS4ERR_DELAY:
+ case -ETIMEDOUT:
+ case -EACCES:
+ case -EAGAIN:
+ goto out;
+ };
+
+ clp->cl_seqid++;
if (!status) {
/* Verify the session's negotiated channel_attrs values */
status = nfs4_verify_channel_attrs(&args, &res);
/* Increment the clientid slot sequence id */
- if (clp->cl_seqid == res.seqid)
- clp->cl_seqid++;
if (status)
goto out;
nfs4_update_session(session, &res);
diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c
index 332d06e64..c1f4c208f 100644
--- a/fs/nfs/nfs4session.c
+++ b/fs/nfs/nfs4session.c
@@ -172,6 +172,39 @@ struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid)
return ERR_PTR(-E2BIG);
}
+static int nfs4_slot_get_seqid(struct nfs4_slot_table *tbl, u32 slotid,
+ u32 *seq_nr)
+ __must_hold(&tbl->slot_tbl_lock)
+{
+ struct nfs4_slot *slot;
+
+ slot = nfs4_lookup_slot(tbl, slotid);
+ if (IS_ERR(slot))
+ return PTR_ERR(slot);
+ *seq_nr = slot->seq_nr;
+ return 0;
+}
+
+/*
+ * nfs4_slot_seqid_in_use - test if a slot sequence id is still in use
+ *
+ * Given a slot table, slot id and sequence number, determine if the
+ * RPC call in question is still in flight. This function is mainly
+ * intended for use by the callback channel.
+ */
+bool nfs4_slot_seqid_in_use(struct nfs4_slot_table *tbl, u32 slotid, u32 seq_nr)
+{
+ u32 cur_seq;
+ bool ret = false;
+
+ spin_lock(&tbl->slot_tbl_lock);
+ if (nfs4_slot_get_seqid(tbl, slotid, &cur_seq) == 0 &&
+ cur_seq == seq_nr && test_bit(slotid, tbl->used_slots))
+ ret = true;
+ spin_unlock(&tbl->slot_tbl_lock);
+ return ret;
+}
+
/*
* nfs4_alloc_slot - efficiently look for a free slot
*
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index 5b51298d1..33cace62b 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -78,6 +78,7 @@ extern int nfs4_setup_slot_table(struct nfs4_slot_table *tbl,
extern void nfs4_shutdown_slot_table(struct nfs4_slot_table *tbl);
extern struct nfs4_slot *nfs4_alloc_slot(struct nfs4_slot_table *tbl);
extern struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid);
+extern bool nfs4_slot_seqid_in_use(struct nfs4_slot_table *tbl, u32 slotid, u32 seq_nr);
extern bool nfs4_try_to_lock_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot);
extern void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot);
extern void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl);
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 7d992362f..229fa6139 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -876,6 +876,9 @@ void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo)
static bool
pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo)
{
+ /* Serialise LAYOUTGET/LAYOUTRETURN */
+ if (atomic_read(&lo->plh_outstanding) != 0)
+ return false;
if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
return false;
lo->plh_return_iomode = 0;
@@ -1527,6 +1530,7 @@ pnfs_update_layout(struct inode *ino,
}
lookup_again:
+ nfs4_client_recover_expired_lease(clp);
first = false;
spin_lock(&ino->i_lock);
lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 01:01:12 +0000